Consolidation and Mechanical Properties of Near-Net-Shape Al-21 wt.% Si Component Fabricated by Plasma Spray Forming

Author(s):  
Soon Jik Hong ◽  
S. Patil ◽  
Chang Kyu Rhee ◽  
S. Seal
2007 ◽  
Vol 119 ◽  
pp. 183-186 ◽  
Author(s):  
Soon Jik Hong ◽  
S. Patil ◽  
Chang Kyu Rhee ◽  
S. Seal

The microstructure and mechanical properties of Al-21 wt% Si components fabricated by plasma spray forming are analyzed. The microstructure of the plasma spry formed component showed a homogeneous distribution of fine Si particles embedded in the Al matrix. The grain size of α-Al varied between 200 to 500 nm and the size of the Si particles was about 50 to 100 nm in the plasma spray formed component. The room temperature tensile strength of the plasma spray formed component was 215 MPa with 0.5 % elongation, while for cast material, it was 130 MPa. Despite the porosities, the ultra-fine microstructure and homogeneous distribution of Si particles embedded in matrix are the foundation of the increased strength of the plasma spry formed component.


2014 ◽  
Vol 55 (4) ◽  
pp. 713-721 ◽  
Author(s):  
Yueming Wang ◽  
Xiang Xiong ◽  
Weizhong Zhao ◽  
Lu Xie ◽  
Jianhui Yan ◽  
...  

2011 ◽  
Vol 52 (6) ◽  
pp. 1269-1275 ◽  
Author(s):  
Yueming Wang ◽  
Xiang Xiong ◽  
Lu Xie ◽  
Xuan Xu ◽  
Xiaobing Min ◽  
...  

2010 ◽  
Vol 527 (21-22) ◽  
pp. 5782-5789 ◽  
Author(s):  
Y.M. Wang ◽  
X. Xiong ◽  
X.B. Min ◽  
L. Xie ◽  
F. Zheng

1993 ◽  
Vol 322 ◽  
Author(s):  
S. Sampath ◽  
H. Herman

AbstractMolybdenum disilicide and its composites have been fabricated by a number of researchers in recent years through vacuum plasma spray (VPS) forming. VPS is capable of producing dense, fine grained deposits of these high temperature intermetallics and is a promising technique for near-net-shape manufacturing. Reviewed here is VPS forming of high temperature silicide intermetallics, principally Mosi2 and its composites. A discussion will be given of the processing-structure-properties relationship of the spray formed silicide.


2010 ◽  
Vol 102-104 ◽  
pp. 719-723
Author(s):  
Liang Rong Zhu ◽  
Hao Ping Zeng ◽  
Wen Ji Xu ◽  
Hong You Li

Mechanical strength and service life of the coatings manufactured by plasma spray forming are significantly reduced by residual stresses. A 2D finite element model constructed for temperature and residual stress simulation of a single stainless steel splat solidifying and cooling on the carbon steel substrate is presented in this paper. Simulated results show that the temperature of the splat rim is higher than that of the central part during the initial stage of solidification, and the temperature difference between the two parts reverse thereafter. The minimum residual stress locates at the rim of the top surface of the splat, and the maximum residual stress, which decreases when the substrate is preheated to a higher temperature, situates at the rim of the interface. Stresses appear as tensile stresses within the splat and compressive stresses within the substrate. The research can provide quantitative understanding of the temperature and residual stress states at the splat level.


Sign in / Sign up

Export Citation Format

Share Document